Yokohama, Japan

Kenji Fujii

USPTO Granted Patents = 158 

 

 

Average Co-Inventor Count = 3.9

ph-index = 12

Forward Citations = 538(Granted Patents)

Forward Citations (Not Self Cited) = 459(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Saitama, JP (1988)
  • Sayama, JP (1990 - 1993)
  • Takasago, JP (1994)
  • Haratsuka, JP (2008)
  • Hamamatsu-City, Shizuoka, JP (2008)
  • Kanagawa, JP (2007 - 2011)
  • Kawasaki, JP (2008 - 2012)
  • Akashi, JP (1999 - 2013)
  • Kobe, JP (2005 - 2015)
  • Hiratsuka, JP (2006 - 2015)
  • Machida, JP (2015)
  • Kanagawa-ken, JP (2015 - 2016)
  • Hyogo, JP (2013 - 2017)
  • Yokohama, JP (1998 - 2021)
  • Tokyo, JP (2019 - 2023)
  • Kyoto, JP (1981 - 2024)

Company Filing History:

goldMedal54 out of 90,631 
 
Canon Kabushiki Kaisha
 patents
silverMedal31 out of 74 
 
Shonan Gosei-jushi Seisakusho K.k.
 patents
bronzeMedal21 out of 768 
 
Omron Healthcare Company Ltd.
 patents
415 out of 5,996 
 
Rohm Co., Ltd.
 patents
511 out of 1,700 
 
Kaneka Corporation
 patents
68 out of 42,488 
 
Hitachi, Ltd.
 patents
76 out of 4,116 
 
Omron Corporation
 patents
83 out of 698 
 
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
 patents
92 out of 10,092 
 
Honda Giken Kogyo Kabushiki Kaisha
 patents
102 out of 475 
 
Denki Kagaku Kogyo Kabushiki Kaisha
 patents
112 out of 354 
 
Denka Company Limited
 patents
121 out of 1,306 
 
Dainippon Screen Mfg. Co., Ltd.
 patents
131 out of 18 
 
Honda Giken Kogyo Kabushiki
 patents
141 out of 1 
 
Shonan Gosei-jushi Seisakusko K.k.
 patent
151 out of 10 
 
Kabushiki Kaisha Hosokawa Funtai Kogaku Kenkyusho
 patents
161 out of 7 
 
Isuzu Motors Limi Ted
 patents
171 out of 57 
 
Osaka City University
 patents
181 out of 502 
 
Thk Co., Ltd.
 patents
191 out of 1 
 
Shonan Gosie-jushi Seisakusho K.k.
 patent
201 out of 30 
 
Toyo Machinery and Metal Co., Ltd.
 patents
213 out of 832,718 
Other
 patents
where one patent can have more than one assignee

Years Active: 1981-2025

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Areas of Expertise:
Semiconductor Devices
Liquid Ejection Heads
Blood Pressure Measurement
Biometric Data Measurement
Pulse Wave Measurement
Water Leakage Detection
Vibration Sensors
Fatigue Degree Determination
Particulate Matter Sensors
Medical Materials
Electrocardiogram Devices
Manufacturing Processes
158 patents (USPTO):Explore Patents

Title: Kenji Fujii: Innovator and Patent Holder

Introduction:

Kenji Fujii, an esteemed inventor from Yokohama, Japan, has made significant contributions to the field of technology and innovation. With a remarkable repertoire of 147 patents, Fujii has gained recognition for his ingenuity and problem-solving abilities. This article delves into Fujii's latest patents, career highlights, notable collaborations, and his overall impact on the realm of inventions and patents.

Latest Patents:

Fujii's latest patents showcase his expertise in diverse areas. One notable invention is the "Water Leakage Detection Method and Apparatus," which involves a processor and display device. This innovative approach enables the detection of water leakage in water pipes within a district metered area using flow meters and vibration sensor terminals. By combining different sources of measurement data, Fujii's method aims to provide more accurate and comprehensive water leakage detection results.

Another recent breakthrough is the "Pulse Wave Measurement Device and Method," designed to measure pulse waves and blood pressure. This invention features a belt with two pulse wave sensors positioned at opposing portions of an artery. By acquiring pulse wave signals and comparing the waveforms, Fujii's device can assist in monitoring and measuring blood pressure accurately. The pressing unit allows for adjustable pressing forces on the measurement site, ensuring consistency in the obtained information.

Career Highlights:

Kenji Fujii has had a distinguished career, marked by his contributions to renowned companies such as Canon Kabushiki Kaisha and Shonan Gosei-jushi Seisakusho K.K. While specific details of his work within these organizations are limited, it is evident that his expertise and inventiveness have been invaluable to their research and development endeavors. Fujii's dedication to innovation has contributed significantly to advancements in fields such as imaging technology and material engineering.

Collaborations:

Throughout his career, Kenji Fujii has collaborated with numerous talented individuals who share his passion for innovation. One of his notable coworkers is Takao Kamiyama, renowned for his expertise in optical systems and image processing. Their collaboration likely led to groundbreaking advancements in imaging technology, benefiting both Canon Kabushiki Kaisha and the broader industry.

Another noteworthy collaborator is Koji Kaneta, whose specialization in advanced materials and manufacturing processes likely complemented Fujii's expertise. By combining their unique skill sets, they may have pushed the boundaries of material engineering, leading to improvements in product durability, performance, and reliability.

Conclusion:

Kenji Fujii’s expertise and relentless pursuit of innovation have established him as a prominent figure in the world of inventions and patents. Through his 147 patents, his latest inventions in water leakage detection and pulse wave measurement highlight his commitment to solving real-world problems using cutting-edge technology. His contributions to companies like Canon Kabushiki Kaisha and Shonan Gosei-jushi Seisakusho K.K. have undoubtedly played a significant role in shaping technological advancements in various industries. Fujii's collaborations with esteemed colleagues like Takao Kamiyama and Koji Kaneta further solidify his contributions to the field. As an inventor and patent holder, Kenji Fujii continues to inspire and push the boundaries of innovation.

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